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Finding the Fourth Proportional to 339,151.70, 508,727.55 and 260,662.10

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Solution

The fourth proportional to 339,151.70, 508,727.55 and 260,662.10 is: 390,993.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,151.70 : 508,727.55 = 260,662.10 : x
  2. Step 2: Convert to fraction form
    339,151.70/508,727.55 = 260,662.10/x
  3. Step 3: Cross multiply
    339,151.70x = 508,727.55 × 260,662.10
  4. Step 4: Simplify right side
    339,151.70x = 132,605,991,510.86
  5. Step 5: Solve for x
    x = 132,605,991,510.86/339,151.70
  6. Step 6: Final answer
    x = 390,993.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.